[Freebaser]

You can drop the PostUpdate healAbsorbPercent and healAbsorbBar:SetPoint stuff. Use something like this when creating the bar.

local healAbsorbBar = CreateFrame("StatusBar", nil, self.Health)
healAbsorbBar:SetStatusBarTexture[[Interface\RaidFrame\Absorb-Fill]]
healAbsorbBar:SetPoint("TOP")
healAbsorbBar:SetPoint("BOTTOM")
healAbsorbBar:SetPoint("LEFT", self.Health:GetStatusBarTexture(), "RIGHT", -(self.Health:GetWidth()), 0)
healAbsorbBar:SetWidth(self.Health:GetWidth())
healAbsorbBar:SetReverseFill(true)
healAbsorbBar:Hide()